GBU-57 Bomb

Manufacturer: Boeing
Category: Bombs & Aerial Munitions
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Warhead Type High explosive penetrator
Delivery Platforms B-2 Spirit, B-52 Stratofortress
Guidance GPS guided
Operational Role Destruction of deeply buried hardened targets

Defense Systems Full Specifications

1. General Information

Name / Designation	GBU-57 Massive Ordnance Penetrator
Type	Precision Guided Bomb
Manufacturer	United States
Country of Origin	Around 2010
Year Introduced	In active U.S. service

2. Physical Characteristics

Weight	Approx. 30,000 lb
Length	Approx. 20.5 ft
Diameter	Approx. 31.5 in
Casing Type	Hardened steel penetrator

3. Performance

Yield	Conventional high explosive
Guidance	GPS aided
Accuracy (CEP)	Estimated within a few meters
Delivery Platforms	B-2 Spirit, B-52 Stratofortress
Penetration Capability	Designed for deep reinforced concrete and rock

4. Warhead / Explosive Details

Warhead Type	High Explosive Penetrator
Fuzing Options	Delayed detonation for underground burst
Explosive Composition	Not publicly disclosed

5. Operational Use

Primary Mission	Destruction of hardened underground facilities
Operators	United States Air Force
Notable Deployments / History	Developed for potential use against fortified WMD sites

6. Variants

Variants

GBU-57A, GBU-57E updated guidance versions

PROS

Deep penetration capability against hardened bunkers
Non nuclear option for strategic underground targets
GPS guided precision strike
Compatible with U.S. long range bombers
High deterrence value

CONS

Limited to specific heavy bomber platforms
High production and integration cost
Requires air superiority for delivery
Limited publicly confirmed combat use
Very large logistical footprint

GBU-57 Massive Ordnance Penetrator Bomb

The GBU-57 Massive Ordnance Penetrator, known as the MOP, is the most powerful conventional bunker-busting bomb in the U.S. arsenal. Designed to defeat deeply buried and heavily reinforced underground facilities, it gives the United States a unique capability to hold hardened strategic targets at risk without using nuclear weapons.

Developed in the mid 2000s, the weapon was created to address emerging threats posed by fortified command centers and suspected weapons facilities built deep underground.

Manufacturer and Origin

The GBU-57 was developed by Boeing for the United States Air Force. It is produced in the United States and integrated primarily on long range strategic bombers.

Speed, Range, and Capability

The GBU-57 is a precision guided gravity bomb equipped with GPS guidance. It is released from high altitude bombers, including the B-2 Spirit and, following upgrades, the B-52 Stratofortress.

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Once released, it follows a ballistic trajectory toward its target. The weapon does not have its own propulsion system. Its range depends on release altitude and aircraft speed, typically allowing stand off employment from high altitude.

Weighing roughly 30,000 pounds, the bomb uses a hardened steel casing designed to penetrate deep into reinforced concrete or rock before detonation. Its warhead is a high explosive penetrator optimized for underground targets.

Cost

Exact unit cost figures are not publicly confirmed, but estimates suggest several million dollars per weapon, reflecting its size, specialized casing, and guidance system.

FAQs

What is the primary role of the GBU-57?

It is designed to destroy deeply buried and hardened underground facilities using conventional explosives.

Is the GBU-57 a nuclear weapon?

No. It is a conventional high explosive penetrator bomb.

Which aircraft can carry the GBU-57?

It is primarily carried by the B-2 Spirit and, after modification, the B-52 Stratofortress.

How heavy is the GBU-57?

The weapon weighs approximately 30,000 pounds, making it one of the heaviest conventional bombs in U.S. service.

Why is the GBU-57 significant for U.S. strategy?

It provides a non nuclear option to strike hardened strategic targets that are beyond the reach of smaller bunker buster munitions.

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